Trait tidb_query_expr::impl_compare::Comparer

pub trait Comparer {
    type T: Evaluable + EvaluableRet;
    fn compare(
        lhs: Option<&Self::T>, 
        rhs: Option<&Self::T>
    ) -> Result<Option<i64>>;
}

Associated Types

type T: Evaluable + EvaluableRet

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Required methods

fn compare(lhs: Option<&Self::T>, rhs: Option<&Self::T>) -> Result<Option<i64>>

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Implementors

impl<F: CmpOp> Comparer for IntUintComparer<F>

type T = Int

fn compare(lhs: Option<&Int>, rhs: Option<&Int>) -> Result<Option<i64>>

impl<F: CmpOp> Comparer for UintIntComparer<F>

type T = Int

fn compare(lhs: Option<&Int>, rhs: Option<&Int>) -> Result<Option<i64>>

impl<F: CmpOp> Comparer for UintUintComparer<F>

type T = Int

fn compare(lhs: Option<&Int>, rhs: Option<&Int>) -> Result<Option<i64>>

impl<T: Evaluable + EvaluableRet + Ord, F: CmpOp> Comparer for BasicComparer<T, F>

type T = T

fn compare(lhs: Option<&T>, rhs: Option<&T>) -> Result<Option<i64>>

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